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US 9,865,992 B2Granted
Method for mode control in multimode semiconductor waveguide lasers
AssigneeNorthrop Grumman Systems Corporation
InventorsRobert R. Rice, Elizabeth T. Kunkee
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Abstract
One embodiment is a wide stripe semiconductor waveguide, which is cleaved at a Talbot length thereof, the wide stripe semiconductor waveguide having facets with mirror coatings. A system provides for selective pumping the wide stripe semiconductor waveguide to create and support a Talbot mode. In embodiments according to the present method and apparatus the gain is patterned so that a single unique pattern actually has the highest gain and hence it is the distribution that oscillates.
Claims5
A method, comprising:
- using, for patterning current injection, an ion implant isolation where current injection is to be avoided;
- and
- covering a surface of a wide stripe semiconductor waveguide with an ohmic metal;
- and
- selectively pumping the wide stripe semiconductor waveguide to create and support a desired electric field distribution comprising a diffraction limited transverse Talbot mode.
2 more elements
Dependencies are inferred from the claim text.